overworked tried in need of guidance

Question

The Total Return on an investment is the relative change in the investment value over a given time period.

Total Return=Ending Value−Initial ValueInitial ValueTotal Return=Ending Value-Initial ValueInitial Value

Katy pays $5,500 for shares in a new company. She sells the shares 10 years later for $17,500. What was her total return on this investment? Round your answer to the nearest tenth of a percent.

The Total Return on Katy's investment is 

Answer 1

Total return usually involves reinvestment of dividends, but some securities have none, so it is the tenth root of ( 17500 - 5500 ) / 5500.= 8.1% per year, 218.2% overall.